Shimano Ultegra R8170 Di2 Groupset + Rpantahi Carbon Cranks

Sale bundle, until 6 November 2026. The Ultegra R8170 Di2 disc brake groupset with Rpantahi carbon crank arms and white carbon spider fitted in place of the Shimano crank arms. Bought separately that is $1,988; the bundle is $1,799.

Includes:
- ST-R8170 Di2 hydraulic shifters
- RD-R8150 Di2 rear derailleur
- FD-R8150 Di2 front derailleur
- Ultegra R8100 chainrings
- CS-R8100 cassette
- CN-M8100 12-speed chain with quick-link
- BR-R8170 hydraulic brake calipers
- RT-MT800 disc rotors (x2)
- BT-DN300 Di2 battery
- EW-SD300 Di2 wires (x2)
- EW-EC300 charging cable
- TL-EW300 tool
- Rpantahi carbon crank arms (your crank length)
- Rpantahi carbon spider (white)

Shimano parts come with a 1-year local Shimano warranty. Professional installation available.